Purpose To improve the development effect of low permeability oilfield or fractured oilfield.

目的改善低渗透油田或裂缝性油田的开发效果.

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Bottom water coning development effect , causing earlier water breakthrough, rapid water cut increase and production decrease.

底水锥进常常使油井过早见水 、 含水上升迅速、产量递减加快.

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